At minimum, look for FDA 21 CFR Part 700 compliance and ISO 22716 Good Manufacturing Practice certification. If you're targeting natural or clean beauty positioning, Ecocert, NSF/ANSI 305, or USDA Organic handling certifications are worth prioritizing. Washington State's Safer Products program also restricts certain PFAS and formaldehyde-releasing ingredients, so confirm your manufacturer is current on state-level restrictions. AJ Cosmo Labs displays each manufacturer's listed certifications on their profile.
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